Kuhnt AS55X User manual

55X Series
SERVICE MANUAL

SERVICE MANUAL AS55X
55Xseries_manual_V3.17 (15-07-22) www.kuhnt.com 1
Index of content
1 General functions ............................................................................................................................ 7
1.1 Fax ........................................................................................................................................... 7
1.2 Callback.................................................................................................................................... 7
1.3 Callback termination ............................................................................................................... 7
1.4 Short message callback request.............................................................................................. 8
1.5 GSM channel groups ............................................................................................................... 8
1.6 VPN .......................................................................................................................................... 9
1.7 Internet.................................................................................................................................... 9
1.8 GME (GSM Mobility Extender) .............................................................................................. 10
1.9 PassThrough .......................................................................................................................... 10
1.10 SimSwitch .............................................................................................................................. 10
1.11 Telnet..................................................................................................................................... 11
1.12 SMS Server............................................................................................................................. 11
1.13 DialCommand ........................................................................................................................ 11
1.14 GSM-PBX................................................................................................................................ 11
1.15 SNMP ..................................................................................................................................... 12
1.16 PassThrough backup mode ................................................................................................... 12
1.17 ProviderSimSwitch................................................................................................................. 13
1.18 DTMF Codes (WLL550 Pro).................................................................................................... 14
2 Technical Features......................................................................................................................... 15
2.1 SimSwitch 551 (PRI/VoIP) - AS551 Master (PRI/VoIP)........................................................... 15
2.2 SimSwitch AS551/4V BRI - AS551/4V BRI.............................................................................. 17
2.3 SimSwitch AS551/2V BRI - AS551/2V BRI.............................................................................. 19
2.4 SimSwitch AS551 Slave - AS551 Slave ................................................................................... 21
2.5 SimSwitch AS550/2V BRI - AS550/2V BRI.............................................................................. 22
2.6 SimSwitch AS550/2V (VoIP) - AS550/2V (light) (VoIP) .......................................................... 24
2.7 WLL 550 Pro Rev1 (wireless local loop)................................................................................. 26
2.8 WLL 550 Pro Rev2 (wireless local loop)................................................................................. 28
2.9 AS5501 / EasyLine (VoIP)....................................................................................................... 29
3 Exterior view / Connectors............................................................................................................ 30
3.1 SimSwitch AS 551 Master (PRI/VoIP) .................................................................................... 30
3.2 SimSwitch AS 551 / 4V BRI .................................................................................................... 31
3.3 SimSwitch AS 551 / 2V BRI .................................................................................................... 32

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3.4 AS 551 Master (PRI/VoIP)...................................................................................................... 33
3.5 AS 551 / 4V BRI ...................................................................................................................... 34
3.6 AS 551 / 2V BRI ...................................................................................................................... 35
3.7 SimSwitch AS 551 Slave......................................................................................................... 36
3.8 AS 551 Slave .......................................................................................................................... 37
3.9 SimSwitch AS 550 2V BRI....................................................................................................... 38
3.10 SimSwitch AS 550 2V ............................................................................................................. 39
3.11 AS 550 2V BRI ........................................................................................................................ 40
3.12 AS 550 2V (standard / light) .................................................................................................. 41
3.13 WLL 550 Pro REV1 (wireless local loop) ................................................................................ 42
3.14 WLL 550 Pro REV2 (wireless local loop) ................................................................................ 43
3.15 AS 5501 / EasyLine................................................................................................................. 44
3.16 LED status .............................................................................................................................. 45
4 Service Software............................................................................................................................ 48
4.1 Access type ............................................................................................................................ 50
4.1.1 USB ................................................................................................................................ 50
4.1.2 GSM ............................................................................................................................... 50
4.1.3 LAN ................................................................................................................................ 51
4.1.4 Demo ............................................................................................................................. 51
4.1.5 Reverse IP access........................................................................................................... 51
4.1.6 Remote access via Telnet channel of AS55X ................................................................. 52
4.2 Import / Export function ....................................................................................................... 52
5 Configuration................................................................................................................................. 53
5.1 General .................................................................................................................................. 53
5.1.1 Tones and announcements ........................................................................................... 53
5.1.2 Volume levels ................................................................................................................ 56
5.2 LAN settings........................................................................................................................... 57
5.2.1 LAN interface Mode....................................................................................................... 57
5.2.2 Advanced network configuration.................................................................................. 58
5.3 ISDN PRI settings ................................................................................................................... 60
5.3.1 Main interface settings.................................................................................................. 60
5.3.2 Main interface protocol................................................................................................. 61
5.3.3 Synchron interface (ISDN AUX) ..................................................................................... 63
5.4 ISDN BRI settings ................................................................................................................... 64
5.4.1 Interface settings........................................................................................................... 64

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5.4.2 Protocol options ............................................................................................................ 65
5.5 POTS settings......................................................................................................................... 68
5.5.1 Interface settings........................................................................................................... 68
5.5.2 Fax settings.................................................................................................................... 69
5.5.3 CLIR with FAX calls......................................................................................................... 69
5.6 ISDN access............................................................................................................................ 70
5.6.1 General .......................................................................................................................... 70
5.6.2 MSN-GSM link list.......................................................................................................... 72
5.6.3 Charge............................................................................................................................ 72
5.6.4 Causes............................................................................................................................ 73
5.7 SIP access............................................................................................................................... 76
5.7.1 General .......................................................................................................................... 76
5.7.2 Extended (expert mode)................................................................................................ 79
5.7.3 Names and passwords................................................................................................... 83
5.7.4 Authorized user list........................................................................................................ 85
5.7.5 Responses...................................................................................................................... 85
5.7.6 DTMF processing ........................................................................................................... 89
5.7.7 Codecs ........................................................................................................................... 90
5.8 Wired access.......................................................................................................................... 91
5.8.1 Country specific settings................................................................................................ 91
5.8.2 Global call-setup............................................................................................................ 92
5.8.3 Individual call-setup....................................................................................................... 94
5.8.4 Short PBX Domain number list ...................................................................................... 96
5.8.5 Short message callback request .................................................................................... 97
5.9 GSM settings.......................................................................................................................... 99
5.9.1 General .......................................................................................................................... 99
5.9.2 GSM channels.............................................................................................................. 101
5.9.3 GSM groups ................................................................................................................. 103
5.10 GSM access.......................................................................................................................... 104
5.10.1 General ........................................................................................................................ 104
5.10.2 By GSM channel........................................................................................................... 105
5.10.3 By GSM number........................................................................................................... 108
5.10.4 Internet........................................................................................................................ 111
5.11 Extended features ............................................................................................................... 112
5.11.1 GME ............................................................................................................................. 112

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5.11.2 PassThrough ................................................................................................................ 113
5.11.3 SimSwitch .................................................................................................................... 116
5.11.4 Telnet........................................................................................................................... 119
5.11.5 SMS server................................................................................................................... 120
5.11.6 DialCommand .............................................................................................................. 121
5.11.7 GSM-PBX...................................................................................................................... 122
5.11.8 SNMP ........................................................................................................................... 128
5.11.9 PassThrough backup mode ......................................................................................... 129
5.11.10 ProviderSimSwitch....................................................................................................... 130
5.12 Special settings .................................................................................................................... 131
5.12.1 Timers.......................................................................................................................... 131
5.12.2 Unnamed bits .............................................................................................................. 134
5.12.3 Unnamed bytes ........................................................................................................... 139
5.12.4 Unnamed words .......................................................................................................... 144
5.12.5 Unnamed long words .................................................................................................. 146
5.13 Test licences ........................................................................................................................ 147
6 Installation................................................................................................................................... 148
6.1 Set SIM PIN .......................................................................................................................... 148
6.2 Set password local access.................................................................................................... 148
6.3 Set password remote / LAN access ..................................................................................... 148
6.4 Set name of device .............................................................................................................. 149
6.5 Download firmware............................................................................................................. 149
6.6 Download announcement file ............................................................................................. 149
6.7 Enter upgrade code ............................................................................................................. 150
7 Services........................................................................................................................................ 151
7.1 Trace .................................................................................................................................... 151
7.2 View GSM channel states.................................................................................................... 152
7.3 Control GSM channel........................................................................................................... 153
7.4 View number management................................................................................................. 153
7.5 View call setup list ............................................................................................................... 154
7.6 View ARP table .................................................................................................................... 154
7.7 View LAN status................................................................................................................... 154
7.8 View SIP status .................................................................................................................... 155
7.9 View SIP registered user list ................................................................................................ 155
7.10 View statistics...................................................................................................................... 155

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7.11 Restarts................................................................................................................................ 156
7.12 System clock / calendar....................................................................................................... 156
7.13 View SimSwitch status......................................................................................................... 156
7.14 View device data ................................................................................................................. 157
7.15 View extended features ...................................................................................................... 157
7.16 View test licenses ................................................................................................................ 157
7.17 Dial command...................................................................................................................... 157
7.18 Short Message Control ........................................................................................................ 158
8 Release Notes.............................................................................................................................. 159
8.1 Release 3.0 .......................................................................................................................... 159
8.1.1 New and improved features........................................................................................ 159
8.1.2 Problem solution ......................................................................................................... 159
8.2 Release 3.01 ........................................................................................................................ 159
8.2.1 New and improved features........................................................................................ 159
8.2.2 Problem solution ......................................................................................................... 160
8.3 Release 3.03 ........................................................................................................................ 160
8.3.1 New and improved features........................................................................................ 160
8.3.2 Problem solution ......................................................................................................... 161
8.4 Release 3.04 ........................................................................................................................ 162
8.4.1 New and improved features........................................................................................ 162
8.4.2 Problem solution ......................................................................................................... 162
8.5 Release 3.05 ........................................................................................................................ 163
8.5.1 New and improved features........................................................................................ 163
8.5.2 Problem solution ......................................................................................................... 163
8.6 Release 3.10 ........................................................................................................................ 164
8.6.1 New and improved features........................................................................................ 164
8.7 Release 3.11 ........................................................................................................................ 165
8.7.1 New and improved features........................................................................................ 165
8.7.2 Problem solution ......................................................................................................... 165
8.8 Release 3.12 ........................................................................................................................ 166
8.8.1 New and improved features........................................................................................ 166
8.8.2 Problem solution ......................................................................................................... 167
8.9 Release 3.13 ........................................................................................................................ 168
8.9.1 New and improved features........................................................................................ 168
8.9.2 Problem solution ......................................................................................................... 169

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8.10 Release 3.14 ........................................................................................................................ 169
8.10.1 New and improved features........................................................................................ 169
8.10.2 Problem solution ......................................................................................................... 170
8.11 Release 3.15 ........................................................................................................................ 170
8.11.1 New and improved features........................................................................................ 170
8.11.2 Problem solution ......................................................................................................... 171
8.12 Release 3.16 ........................................................................................................................ 172
8.12.1 New and improved features........................................................................................ 172
8.12.2 Problem solution ......................................................................................................... 173
8.13 Release 3.17 ........................................................................................................................ 174
8.13.1 New and improved features........................................................................................ 174
8.13.2 Problem solution ......................................................................................................... 175
8.14 Release 3.19 ........................................................................................................................ 175
8.14.1 New and improved features........................................................................................ 175
8.14.2 Problem solution ......................................................................................................... 175

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1General functions
1.1 Fax
It is possible to send and receive faxes over the GSM mobile phone network with a
custom G3-fax machine and the WLL 550 Pro gateway. Normally fax transmissions over
the GSM network used to be difficulty because the handshake is time critical. For better
results the WLL 550 Pro splits the transmission into two phases. First the fax will be
submitted from the sending machine to the WLL 550 Pro buffer and then time-delayed
from the WLL 550 Pro buffer to the receiving fax station. The WLL 550 Pro will try up to
three attempts to submit a fax. During this time the channel LED is flashing continuously
and no further fax call is possible. However a fax transmission can fail for some reason
and by splitting the transmission it might happen that the first phase of the transmission
is successful but the second phase fails. To ensure that the sender gets information
about the unsuccessful transmission the WLL 550 Pro can generate a receipt for all
successful and failed fax transmissions via a response fax.
For fax transmissions you need a SIM card with an additional fax number. All incoming
fax calls will be forwarded automatically to the analogue fax port. Outgoing faxes will be
forwarded preferentially via channel two (WLL 550 Pro with two channels). All settings
in global and individual call setup are exclusively for voice calls.
For programming instruction see 5.5.
1.2 Callback
Due to the restrictions of displaying the CLIP within GSM networks ( ‘CLIP -no screening’
is not available and only a GSM number can be transmitted) a called party does not
know which PBX subscriber is calling via the AS55X or who has initiate the call-setup.
The called subscriber however, cannot reach the call initiator for a call back, because all
subscribers of the PBX could have initiated this call. For this purpose the AS55X can
record calls or call setup data.
All call-setups could be saved, so the AS55X can backtrack every call setup’s origin. The
called party initiates a call to the transmitted CLIP number (one GSM number of the
AS55X) and by using of the call-setup list the callback can be routed the original
subscriber of the PABX. Please consider that only the last call to one destination can be
saved. A previous existing call-setup will always be overwritten by the new one. It is
mandatory that both sides transmit their number (CLIP).
For programming instruction see 5.8.2, 5.8.3, 5.10.2 and 7.5.
1.3 Callback termination
The callback termination function is implemented to save fees on the mobile phone site.
It is possible to call the AS55X with or without transmitting your caller ID (CLIP / CLIR).
The call-setup or the call will be aborted immediately and the AS55X will initiate a
callback to the mobile phone.

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There a few different possibilities:
1st: the incoming call will be rejected by the AS55X
(free of charge, callback via CLIP)
2nd: the incoming call has to be rejected manually by the mobile phone
(free of charge, callback via CLIP)
3rd: the call will be rejected after entering a code
(NOT free of charge, callback via DTMF code)
For programming instruction see 5.10.1, 5.8.2 and 5.10.3.
1.4 Short message callback request
To improve the callback options the ‘short message callback request’function is
implemented to supply a called subscriber with additional call information. If you call a
customer via GSM you can choose between number presentation (CLIP) or number
restriction (CLIR). In case of CLIR is active the customer sees a number of the AS55X but
could not know who is the subscriber of the calling number. With ‘short message
callback request’it is possible to send a SMS short message after a call with additional
call information. Two different text templates with up to 160 characters can be defined.
The selection of the text to be sent depends on the calls origin is within the PBX domain
or not. The text phrases are always the same but can be complemented by the following
variables:
calling number (SIP or ISDN number of calling party)
GSM channel number as displayed
GSM channel number in national order
a free entered number via DTMF.
It is possible to send this short message automatically or controlled by the customer via
DTMF code. The calling party name is available for the SMS callback request for SIP
calls.
For programming instruction see 5.8.5
1.5 GSM channel groups
The routing function of the AS55x does not work via single GSM channels, because of the
higher channel number. Single channels can be combined to a group, but a group might
also consist of only one channel. Therefore, if the user does not want to work with
groups, he can simply assign one channel to each group (there is a button in the
configuration window for GSM groups that automatically does such assignment).
Normally a GSM channel group consists of channels, registered to the same GSM
network. Routing functions of the AS55x point to groups. The selection of a channel
within a group is alternating, i.e. all channels of a group statistically will have the same
load.
One GSM channel can be a member of different groups, e.g. one group points to a VPN
and another one points to a GSM network.
For programming instruction see 5.9.3.